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SIMPLEX TRADING, LLC

Position in DCO — Ducommun Inc /De/

CIK 1488542 CHICAGO, IL

Position in DCO

as of Jun 30, 2026 · filed Aug 12, 2026
Position Value
$9,630
-$1,232 QoQ
Shares Held
52
-54.0% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#246
of 269 holders
Holding Since
Mar 2020
10 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in DCO Over Time

Shares Held

Position Value (USD)

Position in Aerospace & Defense

Industrials · as of Jun 30, 2026

SIMPLEX TRADING, LLC holds $38,870,259 across 50 Aerospace & Defense names. DCO ranks #48 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in DCO

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10 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $9,630 52
2025-09-30 $10,862 113
2025-06-30 $24,045 291
2025-03-31 $17,699 305
2024-12-31 $2 43
2022-03-31 $1,676 32
2021-12-31 $1,496 32
2021-09-30 $65,455 1,300
2021-06-30 $70,928 1,300
2020-03-31 $35,759 1,439